Ludger hebert



No. 620,920. Patented Mar. I4, |899.

L. HBERT.

DOOR CHECK.

(Application led June 24, 1898.1

(No Model.)

Zn esse/5 UNITED STATES PATENT EEicE.

LUDGER HBERT, OF PLAMONDONS MILLS, CANADA.

Doon-CHECK.

SPECIFICATION forming part of Letters Patent No. 620,920, dated March 14, 1899.

Application led J' une 24, 1898. Serial No- 684,373. (No model.)

To all whom t may concern:

Be it known that I, LUDGEE HEBERT, a subject of the Queen of Great Britain, anda citizen of the Dominion of Canada, residing at Plamondons Mills, in the county of Wolfe, in the Province of Quebec,.Canada, have invented a new and useful Improvement in Door-Checks, of which the following is a description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin g drawings, forming a part hereof.

The object of my present invention is to provide a door-check that will effectively hold a door r Window in any required position and will cause it to be locked in such position and in such a manner that it will be impossible to move it without rst being unlocked, thereby permitting the door or window to be securely closed and held firmly, or partly or quite open, as desired, and also locked in such partly or quite opened condition, as desired. I attain these objects by the mechanism illustrated in the accompanying drawings, forming a part of this specification, in which similar numerals indicate like and similar parts throughout the several Views, and in which- Figure lis a front View of the lock securedto a door or easement-window, the door being closed. Fig. 2 is a top view of the same. Fig. 3 is a similar View showing the door open. Figs. 4 and 5 are views of the locking mechanism in the locked and unlocked position, respectively, the casing and knob being removed. Fig. 6 is a transverse section of the locking mechanism on the line 6 6 of Fig. 4.

The lock-casing, which is secured to one of the rails 10 of the door, consists of a faceplate 11, back plate 12, and ends13, the knobspindle 14 being journaled centrally in the face-plate and back plate of the casing, and is provided inside with two wings 15 opposite to each other, and a knob 16 on the outside of said casing.

17 is a rod which slides in two apertures 18, formed in the ends 13 opposite to each other and close to one side of the casing. One end of this rod is provided with a stop 19, and the other end, the end which is nearest to the hinges of the door, is pivoted to a rod 20, which has its other end pivoted in lugs 21,

formed on a plate 22, secured to the door-jamb 23a little distance away from the door.

Two jaws or cams 25 are pivoted in the casing at 26, one on either side of the spindle 14, the pivotal points of these jaws or cams being on the other side of the casing to the sliding rod 17,and their free ends 27 are made eccentric to the pivot, springs 28 bein gprovided, tending to press the jaws toward each other. These jaws or cams are so constructed that when the spindle 14 is turned the wings 15 engage them and push them apart, and when in that'position and in consequence of the eccentricity of the ends 27 they press not n cr do not engage the rod 17, as shown in Fig. 5; but when the knob and spindle 14 are turned so that the. wings 15 no longer engage and press the jaws, as shown in Fig. 4, they close in and press against the rod 17, soA that whichever way the rod is pushed it only tightens one of the jaws on it and so holds the rod.

iirmly, and with it the door or window, in any required position, closed or open.

The manner of operating the lock in the case of a door or easement-window is simply to place the doorin the position desired, either closed or opened, or half closed and opened, and then turn the knob so that the wings on the spindle do not touch the jaws, which will then be pressed by the springs and securely hold the rod, and consequently the door.

Having thus described my invention, what I claim as my invention, and desire to secure by Letters Patent, is-

In a locking mechanism for windows and doors, the combination with a rod pivoted by one end to the jamb of the door or window, a

sliding rod pivoted to the other end of thev said rod, sliding in a casing, of jaws pivoted in the said casing, adapted to engage the said sliding rod, when pressed together, springs pressing the said jaws toward each other, a

knob-spindle journaled in the said casing,

wings on the opposite sides of the spindle adapted when the spindle is turned to press the said jaws apart, substantially as set forth. In testimony whereof I afx my signature in the presence of two Witnesses.

LUDGER HEBERT. Witnesses:

JOSEPH BEGIN, ALBRIC PLAMONDON. 

